He is busy writing the article all the morning, only ________ occasionally to have a cup of coffee.
| A．breaking off | B．breaking down |
| C．breaking through | D．breaking up |
．—John, where are the cookies? Don't tell me you ate them all．
—_____. I couldn't help it．They were so good．
| A．Yes, I did | B．No, I didn't | C．Yes, I have | D．Why? Sound strange |
Mike had to walk home ______ his bike stolen．
| A．with | B．as | C．for | D．since |
．So far, several cases of a disease, _____ as H1N1, are reported to have been found in the country．
| A．knowing | B．to be known | C．having known | D．known |
— May I help you?
—Yes, I'd like to try on some sports jackets just like _____ I'm wearing．
| A．it | B．one | C．the one | D．that |
—Did Jack come back early last night?
—Yes, It was not yet eight o'clock _____ he arrived home．
| A．when | B．that | C．before | D．until |